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CanadaLT · 11-07-2013, 09:23 AM

A guy I know has two Ford ranger trucks and he tracked the fuel economy of both for a few months. He then made a vertical exhaust, like the big rigs, for one truck and his economy went up about 4%. Has anyone else done this?

11-07-2013, 09:23 AM	#1 (permalink)
CanadaLT EcoModding Lurker Join Date: Dec 2012 Location: Toronto Posts: 5 Lump - '94 VW LT28 Doka Thanks: 0 Thanked 0 Times in 0 Posts	vertical exhausts A guy I know has two Ford ranger trucks and he tracked the fuel economy of both for a few months. He then made a vertical exhaust, like the big rigs, for one truck and his economy went up about 4%. Has anyone else done this?